MIDI keyboards with 1 pedal connector

 

— the ability to connect one pedal to the keyboard, that is, the presence of one corresponding input. Usually, in such models, the pedal is responsible for controlling the sustain — the function of prolonging the played note. With sustain on, the note continues to sound even after the key has been released; in other words, the pedal plays the same role as the right pedal on a piano.